BRPI0601318A - Color print - Google Patents

Color print

Info

Publication number
BRPI0601318A
BRPI0601318A BRPI0601318-0A BRPI0601318A BRPI0601318A BR PI0601318 A BRPI0601318 A BR PI0601318A BR PI0601318 A BRPI0601318 A BR PI0601318A BR PI0601318 A BRPI0601318 A BR PI0601318A
Authority
BR
Brazil
Prior art keywords
color
value
black
mout
yout
Prior art date
Application number
BRPI0601318-0A
Other languages
Portuguese (pt)
Inventor
Meng Yao
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of BRPI0601318A publication Critical patent/BRPI0601318A/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6016—Conversion to subtractive colour signals
    • H04N1/6022—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/46—Colour picture communication systems
    • H04N1/52—Circuits or arrangements for halftone screening

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
  • Image Processing (AREA)
  • Color, Gradation (AREA)

Abstract

"IMPRESSãO COLORIDA". A presente invenção refere-se a um método para imprimir um pixel definido por valores de cor C, M, Y que tem uma soma que não é menor do que um valor máximo VMAX predeterminado, que inclui atribuir um máximo dos valores C, M, Y para max_color; atribuir um mínimo dos valores C, M, Y para min_color; selecionar um valor de cor preta K que não é maior do que um mínimo de min_color e (C+M+Y-VMAX)/2; determinar os valores de saída de cor primária não preta Cout, Mout, Yout ajustados e um valor secundário S_color de modo que a soma do valor de cor preta K, dos valores de saída de cor primária não preta Cout, Mout, Yout ajustados, e do valor de cor secundária S_Color seja igual ao valor máximo VMAX predeterminado; e semitonalizar K, Cout, Mout, Yout, e S_color."Color print". The present invention relates to a method for printing a pixel defined by C, M, Y color values that has a sum that is not less than a predetermined maximum VMAX value, which includes assigning a maximum of C, M, Y for max_color; assign a minimum of C, M, Y values to min_color; select a black K color value that is not greater than a min_color minimum and (C + M + Y-VMAX) / 2; determine the adjusted non-black primary color output values Cout, Mout, Yout and a secondary value S_color so that the sum of the black color value K, the adjusted non-black primary color output values Cout, Mout, Yout, and the secondary color value S_Color is equal to the predetermined maximum value VMAX; and semitonalizing K, Cout, Mout, Yout, and S_color.

BRPI0601318-0A 2005-03-24 2006-03-23 Color print BRPI0601318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/089,886 US7502149B2 (en) 2005-03-24 2005-03-24 Color printing

Publications (1)

Publication Number Publication Date
BRPI0601318A true BRPI0601318A (en) 2006-11-07

Family

ID=36498933

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0601318-0A BRPI0601318A (en) 2005-03-24 2006-03-23 Color print

Country Status (7)

Country Link
US (1) US7502149B2 (en)
EP (1) EP1705898B1 (en)
JP (1) JP4652258B2 (en)
KR (1) KR101264214B1 (en)
BR (1) BRPI0601318A (en)
DE (1) DE602006015011D1 (en)
MX (1) MXPA06003079A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7508558B2 (en) * 2005-05-18 2009-03-24 Xerox Corporation Color printing
US7457015B2 (en) * 2005-05-18 2008-11-25 Xerox Corporation Color printing
US7978371B2 (en) * 2008-02-05 2011-07-12 Xerox Corporation Vector half-toning with minimum luminance variation dot formation
US7952764B2 (en) * 2008-02-05 2011-05-31 Xerox Corporation Hierarchical color error diffusion in a CMYKRGB domain
US8179568B2 (en) * 2008-07-24 2012-05-15 Xerox Corporation Minimizing dot graininess in dot-on-dot printing devices
US7916349B2 (en) * 2008-10-27 2011-03-29 Xerox Corporation Color pixel error diffusion in a CMYK input color space

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05153383A (en) * 1991-10-02 1993-06-18 Konica Corp Color correcting device containing color converting function
US5377024A (en) * 1992-05-04 1994-12-27 Hewlett-Packard Apparatus for forming color images using a hue-plus-gray color model
US5657137A (en) * 1992-05-04 1997-08-12 Hewlett-Packard Company Color digital halftoning using black and secondary color replacement
US5696611A (en) * 1994-11-08 1997-12-09 Matsushita Graphic Communication Systems, Inc. Color picture processing apparatus for reproducing a color picture having a smoothly changed gradation
JP3618837B2 (en) * 1995-07-20 2005-02-09 キヤノン株式会社 Image processing apparatus and method, and image forming apparatus
US6229915B1 (en) * 1996-08-22 2001-05-08 Fuji Photo Film Co., Ltd. Method of converting data of a first colorimetric system to data of a second colorimetric system, including a mapping of out of boundary data
US6731400B1 (en) * 1996-11-01 2004-05-04 Hitachi, Ltd. Color image processing apparatus which performs different image processings depending on region of color image
US6072591A (en) * 1997-06-30 2000-06-06 Xerox Corporation Sum and difference error diffusion
US6250733B1 (en) * 1998-11-23 2001-06-26 Xerox Corporation Color printer halftoning method
US7019868B2 (en) * 2000-12-19 2006-03-28 Sharp Laboratories Of Ameirca, Inc. Black generation method for CMYK color printer using multiple lookup tables and interpolation

Also Published As

Publication number Publication date
EP1705898A3 (en) 2007-10-03
KR20060103229A (en) 2006-09-28
JP4652258B2 (en) 2011-03-16
US7502149B2 (en) 2009-03-10
JP2006270950A (en) 2006-10-05
US20060215189A1 (en) 2006-09-28
KR101264214B1 (en) 2013-05-14
DE602006015011D1 (en) 2010-08-05
EP1705898B1 (en) 2010-06-23
MXPA06003079A (en) 2006-09-25
EP1705898A2 (en) 2006-09-27

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 10A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2384 DE 13-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.